EXCESS FLOW VALVE AND SYSTEM

An excess flow valve (EFV) is disclosed that has an efficient and durable construction. The EFV is efficient in terms of both size and cost. It is durable partly due to a design with few parts and also because of optional all metal construction. In some embodiments, an intumescent material is includ...

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Bibliographische Detailangaben
Hauptverfasser:	TRACZ, Michael Christopher, SPALDING, Joseph Jerome, KOCHER, Jason Thomas
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	An excess flow valve (EFV) is disclosed that has an efficient and durable construction. The EFV is efficient in terms of both size and cost. It is durable partly due to a design with few parts and also because of optional all metal construction. In some embodiments, an intumescent material is included that expands to close off the valve by pressing the valve plug into sealing engagement with the valve seat and permanently stopping the flow of gas when a pressure differential or flow velocity threshold is exceeded.